From 4da4d6638bb4a15da1611cc6940591e2da816e26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BF=A1=E9=91=AB-King?= <chaolin.jcl@alibaba-inc.com>
Date: Tue, 16 Feb 2021 02:26:55 -0800
Subject: [PATCH] docs(readme): page.pdf format using a4

`format` property of the `page.pdf` method was `a4` not `A4`.

ref: `PaperFormat` type
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index d2b7ed55a3d3b..23b98375a51f2 100644
--- a/README.md
+++ b/README.md
@@ -106,7 +106,7 @@ const puppeteer = require('puppeteer');
   await page.goto('https://news.ycombinator.com', {
     waitUntil: 'networkidle2',
   });
-  await page.pdf({ path: 'hn.pdf', format: 'A4' });
+  await page.pdf({ path: 'hn.pdf', format: 'a4' });
 
   await browser.close();
 })();